Stock Rocker Arms - Limits? Inspection?
#2462297
03/06/18 10:57 PM
03/06/18 10:57 PM
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Joined: Jul 2011
Posts: 957 Chicago
PurpleBeeper
OP
super stock
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OP
super stock
Joined: Jul 2011
Posts: 957
Chicago
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I'm building a "budget, low-rpm, highway cruiser" 440 & I'm trying to use some used stock rocker arms.
1. What are the limits of a stock rocker arm? I mean, are they limited by spring pressure, cam size, or what? What are those limits?
2. When re-using stock rocker arms, what exactly should I be inspecting? I think I might have 2-3 in my used set that need replacement.
THANK YOU
70 Roadrunner convt. street car
440+6, NOS, 4-spd, SS springs
'96 Mustang GT convt. street car
'04 4.6 SOHC, NOS, auto, lowered
"Officer, that button is for short on-ramps"
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Re: Stock Rocker Arms - Limits? Inspection?
[Re: ahy]
#2462361
03/07/18 12:24 AM
03/07/18 12:24 AM
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Joined: Aug 2006
Posts: 2,505 God's Country Maryland
GODSCOUNTRY340
master
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master
Joined: Aug 2006
Posts: 2,505
God's Country Maryland
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I didn't start seeing failures until I started using double valve springs, then the pushrods would push right through the rockers. Check the area where the pushrods make contact, the cup should be smooth and shiny. The same with where they ride on the valve stems. If these areas are rough and/or torn up replace that rocker.
I love the smell of Deer guts in the morning, it smells like... VICTORY!
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